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<div class="textblock"><code>#include &quot;<a class="el" href="_link_test_8h_source.html">LinkTest.h</a>&quot;</code><br/>
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Functions</h2></td></tr>
<tr class="memitem:a2487aee5f619738702f6bb91b1bf9474"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_link_test_8cpp.html#a2487aee5f619738702f6bb91b1bf9474">TEST_F</a> (<a class="el" href="class_link_test.html">LinkTest</a>, Constructor)</td></tr>
<tr class="memdesc:a2487aee5f619738702f6bb91b1bf9474"><td class="mdescLeft">&#160;</td><td class="mdescRight">Construct <a class="el" href="class_link.html" title="Link class. ">Link</a>, test default values.  <a href="#a2487aee5f619738702f6bb91b1bf9474">More...</a><br/></td></tr>
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<tr class="memdesc:aee2c6dd44a56c4e6b18c8729dbcf83c5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transmit/Propagate PDU test.  <a href="#aee2c6dd44a56c4e6b18c8729dbcf83c5">More...</a><br/></td></tr>
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<tr class="memdesc:a77587fb1b0ca936d29d007a8c01f9fe7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transmit/Propagate several PDUs, test large BDP link, and queues.  <a href="#a77587fb1b0ca936d29d007a8c01f9fe7">More...</a><br/></td></tr>
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<tr class="memdesc:af31fd973e13bf84819f3931ff4253eec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transmit/Propagate several PDUs, test large BDP link, and queues.  <a href="#af31fd973e13bf84819f3931ff4253eec">More...</a><br/></td></tr>
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<tr class="memdesc:a6c0b5087f80d3b3b3f61ad91cb92c463"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transmit/Propagate several PDUs, set link down, test dropped PDUs.  <a href="#a6c0b5087f80d3b3b3f61ad91cb92c463">More...</a><br/></td></tr>
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<tr class="memdesc:aa50ff86489f61ca289d3f970c9f85c54"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transmit/Propagate several PDUs back and forth in a duplex link. <a class="el" href="class_link.html" title="Link class. ">Link</a> fault.  <a href="#aa50ff86489f61ca289d3f970c9f85c54">More...</a><br/></td></tr>
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<h2 class="groupheader">Function Documentation</h2>
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          <td class="paramname"><em>argc</em>, </td>
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<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00816">816</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;                                {</div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;  ::testing::InitGoogleTest(&amp;argc, argv);</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;  <span class="keywordflow">return</span> RUN_ALL_TESTS();</div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;}</div><!-- fragment -->
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<p>Construct <a class="el" href="class_link.html" title="Link class. ">Link</a>, test default values. </p>

<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00032">32</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;                              {</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    std::shared_ptr&lt;Node&gt; source(std::make_shared&lt;Node&gt;(simulatorGlobals));</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    std::shared_ptr&lt;Node&gt; destination(std::make_shared&lt;Node&gt;(simulatorGlobals));</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keywordtype">double</span> bandwidth = 100000000; <span class="comment">// 100 Mibits/s.</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keywordtype">double</span> propagationDelay = 0.010; <span class="comment">// 10ms delay.</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    std::string name = <span class="stringliteral">&quot;SimplexLink source-&gt;destination&quot;</span>;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <a class="code" href="class_link.html">Link</a> linkWithName(source, destination, bandwidth, propagationDelay, simulatorGlobals, scheduler, name);</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <a class="code" href="class_link.html">Link</a> linkNoName(source, destination, bandwidth, propagationDelay, simulatorGlobals, scheduler);</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    EXPECT_EQ(source, linkWithName.getSourceNode());</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    EXPECT_EQ(destination, linkWithName.getDestinationNode());</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    EXPECT_EQ(bandwidth, linkWithName.getBandwidth());</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    EXPECT_EQ(propagationDelay, linkWithName.getPropagationDelay());</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    EXPECT_EQ(name, linkWithName.getName());</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    EXPECT_EQ(std::numeric_limits&lt;unsigned int&gt;::max(), linkWithName.getTransmissionQueueSizeLimit());</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    EXPECT_EQ(source, linkNoName.getSourceNode());</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    EXPECT_EQ(destination, linkNoName.getDestinationNode());</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    EXPECT_EQ(bandwidth, linkNoName.getBandwidth());</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    EXPECT_EQ(propagationDelay, linkNoName.getPropagationDelay());</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    EXPECT_EQ(<span class="stringliteral">&quot;&quot;</span>, linkNoName.getName());</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    EXPECT_EQ(std::numeric_limits&lt;unsigned int&gt;::max(), linkNoName.getTransmissionQueueSizeLimit());</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;}</div>
<div class="ttc" id="class_link_html"><div class="ttname"><a href="class_link.html">Link</a></div><div class="ttdoc">Link class. </div><div class="ttdef"><b>Definition:</b> <a href="_link_8h_source.html#l00069">Link.h:69</a></div></div>
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<p>Transmit/Propagate PDU test. </p>

<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00057">57</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;                                       {</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    std::shared_ptr&lt;Node&gt; source(std::make_shared&lt;Node&gt;(simulatorGlobals));</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    std::shared_ptr&lt;Node&gt; destination(std::make_shared&lt;Node&gt;(simulatorGlobals));</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="keywordtype">double</span> bandwidth = 100000000; <span class="comment">// 100 MiB.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <span class="keywordtype">double</span> propagationDelay = 0.010; <span class="comment">// 10ms delay.</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    std::string name = <span class="stringliteral">&quot;SimplexLink source-&gt;destination&quot;</span>;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="comment">// Creates a PDU, size 1000 bytes.</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    std::shared_ptr&lt;ProtocolDataUnit&gt; pdu(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>, source, destination, 1000));</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="comment">// Create simplex link.</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    <a class="code" href="class_link.html">Link</a> link(source, destination, bandwidth, propagationDelay, simulatorGlobals, scheduler, name);</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <span class="comment">// Set previous and next to prevent rejection of PDU by link.</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    pdu-&gt;previous = pdu-&gt;source;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    pdu-&gt;next = pdu-&gt;destination;</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    EXPECT_EQ(pdu-&gt;previous, pdu-&gt;source);</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    EXPECT_EQ(pdu-&gt;next, pdu-&gt;destination);</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="comment">// Phase 1: initiate transmission.</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    EXPECT_EQ(link.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pdu), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afacd81b4be909430d796a08b373c59d714">LinkReturnType::PDU_IN_TRANSMISSION_NEXT_EVENT_SCHEDULED</a>);</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="comment">// Test event that was scheduled and its parameters.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <a class="code" href="class_event.html">Event</a> <span class="keyword">event</span> = scheduler.cause();</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    EXPECT_EQ(event.eventType, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>);</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    EXPECT_EQ(event.occurAfterTime, 1000 * 8 / bandwidth);</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="comment">// Check clock.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    EXPECT_EQ(simulatorGlobals.getCurrentAbsoluteTime(), 1000 * 8 / bandwidth);</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="comment">// Is link busy? It must be.</span></div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    EXPECT_EQ(<span class="keyword">true</span>, link.isTransmissionServerBusy());</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="comment">// Check link transmission and inTransitQueue.</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    EXPECT_EQ(0, link.getTransmissionQueueSize()); <span class="comment">// Did not wait in queue.</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    EXPECT_EQ(0, link.getInTransitQueueSize()); <span class="comment">// Not propagating yet.</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="comment">// Phase 2: now propagate PDU.</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    EXPECT_EQ(<a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>, link.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pdu));</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="comment">// Check inTransitQueue.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    EXPECT_EQ(1, link.getInTransitQueueSize());</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="comment">// Link&#39;s transmission server must be available now, since the propagation event releases the underlying Facility.</span></div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    EXPECT_EQ(<span class="keyword">false</span>, link.isTransmissionServerBusy());</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="comment">// Test event that was scheduled and its parameters.</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keyword">event</span> = scheduler.cause();</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    EXPECT_EQ(event.eventType, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    EXPECT_EQ(event.occurAfterTime, propagationDelay);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="comment">// Check clock.</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    EXPECT_EQ(simulatorGlobals.getCurrentAbsoluteTime(), 1000 * 8 / bandwidth + propagationDelay);</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    </div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="comment">// Phase 3: link delivers PDU, node receives PDU, PDU is fully propagated.</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    link.endPropagation(pdu); <span class="comment">// Ends propagation, removes PDU from inTransitQueue.</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    EXPECT_EQ(0, link.getInTransitQueueSize());</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    EXPECT_EQ(0, scheduler.getChainSize()); <span class="comment">// No more events in event chain.</span></div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    EXPECT_EQ(0, link.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="comment">// Now let&#39;s change the same PDU&#39;s previous and next Node fields to some invalid ones and check whether a link accepts transmitting a PDU that will not reach its next node through it.</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    std::shared_ptr&lt;Node&gt; notDestination(std::make_shared&lt;Node&gt;(simulatorGlobals));</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    pdu-&gt;previous = pdu-&gt;source;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    pdu-&gt;next = notDestination;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <span class="comment">// Deliver it to the Link. It should refuse it.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    EXPECT_EQ(link.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pdu), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa1540ac8eab2f22bb0c7e66c69ff50dc3">LinkReturnType::ERROR_LINK_DOES_NOT_CONNECT_NODES</a>);</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;}</div>
<div class="ttc" id="class_protocol_data_unit_html"><div class="ttname"><a href="class_protocol_data_unit.html">ProtocolDataUnit</a></div><div class="ttdoc">Protocol Data Unit class. </div><div class="ttdef"><b>Definition:</b> <a href="_protocol_data_unit_8h_source.html#l00033">ProtocolDataUnit.h:33</a></div></div>
<div class="ttc" id="class_event_html"><div class="ttname"><a href="class_event.html">Event</a></div><div class="ttdoc">Event class. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00035">Event.h:35</a></div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a></div><div class="ttdoc">A token or PDU arrives at a node. </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a></div><div class="ttdoc">Propagates a PDU through a link (typically a fixed-time delay). </div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a></div><div class="ttdoc">PDU is in transit within link medium (and within inTransitQueue). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a></div><div class="ttdoc">Request that a link transmits a PDU. </div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa1540ac8eab2f22bb0c7e66c69ff50dc3"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa1540ac8eab2f22bb0c7e66c69ff50dc3">LinkReturnType::ERROR_LINK_DOES_NOT_CONNECT_NODES</a></div><div class="ttdoc">The nodes within PDU&amp;#39;s previous and next fields are not connected through this link. PDU cannot travel here (inconsistency). </div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afacd81b4be909430d796a08b373c59d714"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afacd81b4be909430d796a08b373c59d714">LinkReturnType::PDU_IN_TRANSMISSION_NEXT_EVENT_SCHEDULED</a></div><div class="ttdoc">PDU was successfully put into transmission (serviced) at Link. </div></div>
<div class="ttc" id="class_link_html"><div class="ttname"><a href="class_link.html">Link</a></div><div class="ttdoc">Link class. </div><div class="ttdef"><b>Definition:</b> <a href="_link_8h_source.html#l00069">Link.h:69</a></div></div>
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          <td class="memname">TEST_F </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_link_test.html">LinkTest</a>&#160;</td>
          <td class="paramname">, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">MultiplePdus&#160;</td>
          <td class="paramname">&#160;</td>
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          <td>)</td>
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<p>Transmit/Propagate several PDUs, test large BDP link, and queues. </p>
<p><a class="el" href="class_topology.html" title="Topology class. ">Topology</a>:</p>
<p>Node0 ------&mdash; Node1 -------&mdash; Node2 </p>
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<p>PDUs get inserted into Node0. Some will go to Node2 (routeToNode2), some will go to Node3 (routetoNode3). </p>

<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00129">129</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                               {</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    <span class="comment">// Some variables.</span></div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <a class="code" href="class_event.html">Event</a> event;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    std::shared_ptr&lt;Entity&gt; eventEntityNonConst; <span class="comment">// To temporarily use for removal of constness of Entity within event.</span></div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    std::shared_ptr&lt;ProtocolDataUnit&gt; pduFromEventEntityNonConst;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keywordtype">bool</span> simulationEnded = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pduSize = 1000; <span class="comment">// PDU will be 1000 bytes.</span></div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="comment">// Build 4 nodes.</span></div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    std::vector&lt;std::shared_ptr&lt;Node&gt;&gt; nodeVector;</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    std::vector&lt;std::shared_ptr&lt;Entity&gt;&gt; routeToNode2;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    std::vector&lt;std::shared_ptr&lt;Entity&gt;&gt; routeToNode3;</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 4; ++i) {</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        nodeVector.push_back(std::shared_ptr&lt;Node&gt;(<span class="keyword">new</span> <a class="code" href="class_node.html">Node</a>(simulatorGlobals)));</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    }</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="comment">// Create route from node0 to node2.</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    routeToNode2.push_back(nodeVector.at(0));</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    routeToNode2.push_back(nodeVector.at(1));</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    routeToNode2.push_back(nodeVector.at(2));</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    </div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    <span class="comment">// Create route from node0 to node3.</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    routeToNode3.push_back(nodeVector.at(0));</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    routeToNode3.push_back(nodeVector.at(1));</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    routeToNode3.push_back(nodeVector.at(3));</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    <span class="comment">// Create simplex links between nodes.</span></div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <a class="code" href="class_link.html">Link</a> link01(nodeVector.at(0), nodeVector.at(1), 100000, 0.001, simulatorGlobals, scheduler); <span class="comment">// 100 Kbps, 1ms.</span></div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    link01.<a class="code" href="class_link.html#af64db4e49ef26c305b301db2ae318244">setTransmissionQueueSizeLimit</a>(9); <span class="comment">// PDUs above 10 will be discarded.</span></div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    <a class="code" href="class_link.html">Link</a> link12(nodeVector.at(1), nodeVector.at(2), 100000, 1.0, simulatorGlobals, scheduler); <span class="comment">// 100 Kbps, 1s, 3 PDU queue limit.</span></div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    link12.<a class="code" href="class_link.html#af64db4e49ef26c305b301db2ae318244">setTransmissionQueueSizeLimit</a>(3);</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    <a class="code" href="class_link.html">Link</a> link13(nodeVector.at(1), nodeVector.at(3), 100000, 10.0, simulatorGlobals, scheduler); <span class="comment">// 100 Kbps, 10s, 3 PDU queue limit.</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    link13.<a class="code" href="class_link.html#af64db4e49ef26c305b301db2ae318244">setTransmissionQueueSizeLimit</a>(3);</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="comment">// The goal here is to also verify whether links are dropping PDUs because of full queues. Links after Node 1 will actually not have full queues with the current configuration,</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="comment">// since not all PDUs will arrive at the same time at Node 1 due to the delay imposed by link01. Actually, the queue at link01 will have PDUs waiting.</span></div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    <span class="comment">// Generate 5 PDUs to be sent them to node2 with corresponding events.</span></div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 5; ++i) {</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            nodeVector.at(0), nodeVector.at(2), nodeVector.at(0), nodeVector.at(0), pduSize, routeToNode2))));</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    }</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    <span class="comment">// Generate 5 PDUs to be sent them to node3 with corresponding events. Arrival time will be 1ms later than previous 5 PDUs.</span></div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 5; ++i) {</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.001, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;            nodeVector.at(0), nodeVector.at(3), nodeVector.at(0), nodeVector.at(0), pduSize, routeToNode3))));</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    }</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    <span class="comment">// Generate 5 additional PDUs to be sent do node3 with corresponding events. These should be actually dropped by link01, because the queue will be already full.</span></div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 5; ++i) {</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.002, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;            nodeVector.at(0), nodeVector.at(3), nodeVector.at(0), nodeVector.at(0), pduSize, routeToNode3))));</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    }</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    EXPECT_EQ(15, scheduler.getChainSize());</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    <span class="comment">// Schedule one END_SIMULATION event.</span></div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(1000, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>, <span class="keyword">nullptr</span>));</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;    <span class="comment">// Main switch-case.</span></div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    <span class="keywordflow">while</span> (!simulationEnded) {</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;        <span class="keyword">event</span> = scheduler.cause(); <span class="comment">// Fetch next event from scheduler.</span></div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        eventEntityNonConst = std::const_pointer_cast&lt;<a class="code" href="class_entity.html">Entity</a>&gt;(<span class="keyword">event</span>.entity);</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;        pduFromEventEntityNonConst = std::dynamic_pointer_cast&lt;<a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>&gt;(eventEntityNonConst);</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        <span class="comment">// Now decide what to do.</span></div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        <span class="keywordflow">switch</span> (event.<a class="code" href="class_event.html#a491887ba31c3f39b85930214133236fd">eventType</a>) {</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;            <span class="comment">//case EventType::REQUEST_PDU_TRANSMISSION_AT_LINK:</span></div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;            <span class="comment">//  // Decide which link to use based on next field of PDU.</span></div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;            <span class="comment">//  // Return type of Link depends on whether the link is busy or whether queue has reached maximum.</span></div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;            <span class="comment">//  if (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) { // All PDUs.</span></div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;            <span class="comment">//      if (pduFromEventEntityNonConst-&gt;id == 1) {</span></div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;            <span class="comment">//          EXPECT_EQ(link01.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::PDU_IN_TRANSMISSION_NEXT_EVENT_SCHEDULED);</span></div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;            <span class="comment">//      } else {</span></div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;            <span class="comment">//          EXPECT_EQ(link01.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::LINK_BUSY_PDU_ENQUEUED);</span></div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;            <span class="comment">//      }</span></div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;            <span class="comment">//  } else if (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) { // PDUs 1 - 5</span></div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            <span class="comment">//      if (pduFromEventEntityNonConst-&gt;id == 1) {</span></div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;            <span class="comment">//          EXPECT_EQ(link12.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::PDU_IN_TRANSMISSION_NEXT_EVENT_SCHEDULED);</span></div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            <span class="comment">//      } else if (pduFromEventEntityNonConst-&gt;id &gt;= 2 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 3) {</span></div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            <span class="comment">//          EXPECT_EQ(link12.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::LINK_BUSY_PDU_ENQUEUED);</span></div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            <span class="comment">//      } else {</span></div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;            <span class="comment">//          EXPECT_EQ(link12.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED);</span></div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            <span class="comment">//      }</span></div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;            <span class="comment">//  } else {</span></div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;            <span class="comment">//      if (pduFromEventEntityNonConst-&gt;id == 6) { // PDUs 6 - 10.</span></div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;            <span class="comment">//          EXPECT_EQ(link13.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::PDU_IN_TRANSMISSION_NEXT_EVENT_SCHEDULED);</span></div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;            <span class="comment">//      } else if (pduFromEventEntityNonConst-&gt;id &gt;= 7 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 8) {</span></div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;            <span class="comment">//          EXPECT_EQ(link13.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::LINK_BUSY_PDU_ENQUEUED);</span></div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;            <span class="comment">//      } else {</span></div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;            <span class="comment">//          EXPECT_EQ(link13.transmitPdu(EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK, pduFromEventEntityNonConst), LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED);</span></div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;            <span class="comment">//      }</span></div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;            <span class="comment">//  }</span></div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;            <span class="comment">//  break;</span></div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>:</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;                <span class="comment">// Decide which link to use based on next field of PDU.</span></div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;                <span class="comment">// Return type of Link depends on whether the link is busy or whether queue has reached maximum.</span></div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;                <span class="comment">// Node 1, link 01.</span></div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) { <span class="comment">// All PDUs.</span></div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;                    <span class="comment">// PDUs above 11 should be discarded by link01.</span></div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 11 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 15) {</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;                        EXPECT_EQ(<a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1">LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED</a>, link01.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;                        <span class="comment">// Other PDUs will request this event either by first arriving at node1, or when being dequeued.</span></div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;                        link01.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;                    }</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) { <span class="comment">// PDUs 1 - 5</span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;                    <span class="comment">// Node 1, link 12.</span></div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;=1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 5) {</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;                        link12.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;                        EXPECT_EQ(link12.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1">LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED</a>);</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;                    }</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;                    <span class="comment">// Node 1, link 13.</span></div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;                    <span class="comment">// PDUs 6 - 10.</span></div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 6 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 10) {</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;                        link13.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;                        EXPECT_EQ(link13.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1">LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED</a>);</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;                    }</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;                }</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>:</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;                <span class="comment">// Test for arrival at each node and perform tests.</span></div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(0)) { <span class="comment">// Node 0.</span></div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;                    <span class="comment">// PDUs from 1 to 5 should arrive at 0.0.</span></div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 5) {</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), 0.0);</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;                        EXPECT_DOUBLE_EQ(0.0, event.<a class="code" href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">occurAfterTime</a>);</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;                        EXPECT_EQ(nodeVector.at(2), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;                    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 6 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 10) {</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;                        <span class="comment">// PDUs from 6 to 10 should arrive at 0.001.</span></div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), 0.001);</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;                        EXPECT_DOUBLE_EQ(0.001, event.<a class="code" href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">occurAfterTime</a>);</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;                        EXPECT_EQ(nodeVector.at(3), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;                        <span class="comment">// PDUs from 11 to 15 should arrive at 0.002.</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;                        EXPECT_DOUBLE_EQ(0.002, simulatorGlobals.getCurrentAbsoluteTime());</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;                        EXPECT_DOUBLE_EQ(0.002, event.<a class="code" href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">occurAfterTime</a>);</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;                        EXPECT_EQ(nodeVector.at(3), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;                    }</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) { <span class="comment">// Node 1.</span></div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;                    <span class="comment">// End propagation.</span></div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;                    link01.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;                    <span class="comment">// PDUs from 1 to 5 should arrive at pduSize * 8 / bandwidthlink01 + propagationDelayLink01 + queue wait time previous PDUs.</span></div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 5) {</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;                        <span class="comment">// Each subsequent PDU adds 0.08 of delay, since a PDU has to wait in the queue while to previous PDUs are being transmitted.</span></div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), (pduSize * 8 / link01.getBandwidth()) * (pduFromEventEntityNonConst-&gt;id) + link01.getPropagationDelay());</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;                        EXPECT_DOUBLE_EQ(link01.getPropagationDelay(), <span class="keyword">event</span>.occurAfterTime);</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;                        EXPECT_EQ(nodeVector.at(2), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;                        <span class="comment">// PDUs from 6 to 10 should arrive at pduSize * 8 / bandwidthlink01 + propagationDelayLink01 + queue wait time previous PDUs.</span></div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;                        <span class="comment">// Arrival delay of PDUs 6-10 will not accumulate, since when these PDUs arrive, they will go directly to the queue.</span></div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), pduSize * 8 / link01.getBandwidth() * pduFromEventEntityNonConst-&gt;id + link01.getPropagationDelay());</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;                        EXPECT_DOUBLE_EQ(link01.getPropagationDelay(), <span class="keyword">event</span>.occurAfterTime);</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;                        EXPECT_EQ(nodeVector.at(3), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;                    }</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) { <span class="comment">// Node 2.</span></div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;                    <span class="comment">// End propagation.</span></div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;                    link12.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;                    <span class="comment">// PDUs from 1 to 3 should arrive at pduSize / bandwidthlink12 + propagationDelayLink12 + previous link latency + queue wait time previous PDUs at link01.</span></div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;                    <span class="comment">// PDUs from 4 to 5 should be discarded. Actually, NO!</span></div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 5) {</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), pduSize * 8 / link12.getBandwidth() + link12.getPropagationDelay() + pduSize * 8 / link01.getBandwidth() * pduFromEventEntityNonConst-&gt;id + link01.getPropagationDelay());</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), pduFromEventEntityNonConst-&gt;getAbsoluteGenerationTime() + pduSize * 8 / link12.getBandwidth() + link12.getPropagationDelay() + pduSize * 8 / link01.getBandwidth() * pduFromEventEntityNonConst-&gt;id + link01.getPropagationDelay());</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;                        EXPECT_DOUBLE_EQ(link12.getPropagationDelay(), <span class="keyword">event</span>.occurAfterTime);</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;                        EXPECT_EQ(nodeVector.at(2), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;                        <span class="comment">// No other PDUs should be here.</span></div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;                        EXPECT_TRUE(pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 5);</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;                    }</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(3)) { <span class="comment">// Node 3.</span></div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;                    <span class="comment">// End propagation.</span></div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;                    link13.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;                    <span class="comment">// PDUs from 6 to 8 should arrive at pduSize / bandwidthlink13 + propagationDelayLink13 + previous link latency + queue wait time previous PDUs at link01.</span></div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;                    <span class="comment">// PDUs from 9 to 10 should be discarded. Actually, NO!</span></div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 6 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 10) {</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), pduSize * 8 / link13.getBandwidth() + link13.getPropagationDelay() + pduSize * 8 / link01.getBandwidth() * pduFromEventEntityNonConst-&gt;id + link01.getPropagationDelay());</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;                        EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), pduFromEventEntityNonConst-&gt;getAbsoluteGenerationTime() + pduSize * 8 / link13.getBandwidth() + link13.getPropagationDelay() + pduSize * 8 / link01.getBandwidth() * pduFromEventEntityNonConst-&gt;id + link01.getPropagationDelay());</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;                        EXPECT_DOUBLE_EQ(link13.getPropagationDelay(), <span class="keyword">event</span>.occurAfterTime);</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;                        EXPECT_EQ(nodeVector.at(3), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;                        <span class="comment">// No other PDUs should be here.</span></div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;                        EXPECT_TRUE(pduFromEventEntityNonConst-&gt;id &gt;= 6 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 10);</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;                    }</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;                }</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;                <span class="comment">// This should be the same for either route. The &quot;next&quot; node should to the processing; it is actually the &quot;current&quot; node at this stage/event.</span></div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next != nodeVector.at(2) &amp;&amp; pduFromEventEntityNonConst-&gt;next != nodeVector.at(3)) {</div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;                    <span class="comment">// Not Final destination; forward it.</span></div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;                    EXPECT_EQ(<a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a>, std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst)));</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;                    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;                    <span class="comment">// Final destination. Do not schedule anything else.</span></div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;                    EXPECT_EQ(<a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a>, std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst)));</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;                }</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;                <span class="comment">// Schedule the transmission.</span></div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;                <span class="comment">//scheduler.schedule(Event(0.0, EventType::REQUEST_PDU_TRANSMISSION_AT_LINK, pduFromEventEntityNonConst));</span></div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;                <span class="comment">//EXPECT_EQ(link01.getDestinationNode(), std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next));</span></div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>:</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;                std::cout &lt;&lt; <span class="stringliteral">&quot;Simulation ended.&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;                simulationEnded = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>:</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;                <span class="comment">// Here, end the link transmission and schedule the end of propagation.</span></div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) {</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;                    EXPECT_EQ(link01.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>);</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) {</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;                    EXPECT_EQ(link12.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>);</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;                    EXPECT_EQ(link13.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>);</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;                }</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;            <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;                EXPECT_FALSE(<span class="keyword">true</span>); <span class="comment">// This should never be reached.</span></div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;        }</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    } <span class="comment">// End while.</span></div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;</div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;    <span class="comment">// Test statistics.</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    <span class="comment">// Nodes.</span></div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;    EXPECT_EQ(pduSize * 15, nodeVector.at(0)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;    EXPECT_EQ(pduSize * 15, nodeVector.at(0)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;    EXPECT_EQ(pduSize * 10, nodeVector.at(1)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;    EXPECT_EQ(pduSize * 10, nodeVector.at(1)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;    EXPECT_EQ(0, nodeVector.at(2)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    EXPECT_EQ(pduSize * 5, nodeVector.at(2)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;    EXPECT_EQ(0, nodeVector.at(3)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;    EXPECT_EQ(pduSize * 5, nodeVector.at(3)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    <span class="comment">// Links.</span></div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;    <span class="comment">// Links 12 and 13 will never drop any PDU, because they will actually have 0 PDUs in queue at any time...</span></div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;    EXPECT_EQ(0, link01.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;    EXPECT_EQ(5, link01.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;    EXPECT_EQ(5, link01.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;    EXPECT_EQ(0, link12.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    EXPECT_EQ(0, link12.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;    EXPECT_EQ(0, link12.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;    EXPECT_EQ(0, link13.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;    EXPECT_EQ(0, link13.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;    EXPECT_EQ(0, link13.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;    <span class="comment">// The tests below demonstrate how link01 had 9 PDUs in queue, and the other links never got any queue, since each PDU arrived after the previous one was already departed.</span></div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;    EXPECT_EQ(9, link01.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;    EXPECT_EQ(0, link12.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;    EXPECT_EQ(0, link13.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;}</div>
<div class="ttc" id="class_protocol_data_unit_html"><div class="ttname"><a href="class_protocol_data_unit.html">ProtocolDataUnit</a></div><div class="ttdoc">Protocol Data Unit class. </div><div class="ttdef"><b>Definition:</b> <a href="_protocol_data_unit_8h_source.html#l00033">ProtocolDataUnit.h:33</a></div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1">LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED</a></div><div class="ttdoc">The queue is full (has reached the imposed limit); PDU for which service was requested was dropped...</div></div>
<div class="ttc" id="class_event_html"><div class="ttname"><a href="class_event.html">Event</a></div><div class="ttdoc">Event class. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00035">Event.h:35</a></div></div>
<div class="ttc" id="class_node_html"><div class="ttname"><a href="class_node.html">Node</a></div><div class="ttdoc">Node class. </div><div class="ttdef"><b>Definition:</b> <a href="_node_8h_source.html#l00051">Node.h:51</a></div></div>
<div class="ttc" id="class_link_html_af64db4e49ef26c305b301db2ae318244"><div class="ttname"><a href="class_link.html#af64db4e49ef26c305b301db2ae318244">Link::setTransmissionQueueSizeLimit</a></div><div class="ttdeci">virtual void setTransmissionQueueSizeLimit(unsigned int limit)</div><div class="ttdoc">Set transmission (Facility) queue size limit (for both forward and reverse links in case of duplex li...</div><div class="ttdef"><b>Definition:</b> <a href="_link_8cpp_source.html#l00319">Link.cpp:319</a></div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a></div><div class="ttdoc">A token or PDU arrives at a node. </div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a></div><div class="ttdoc">Node is not final destination; route information was updated within PDU/token, to be forwarded...</div></div>
<div class="ttc" id="class_event_html_a0c757aa51de4c298990f70962cfa3fd2"><div class="ttname"><a href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">Event::occurAfterTime</a></div><div class="ttdeci">double occurAfterTime</div><div class="ttdoc">Occurrence latency, i.e., event occurs after occurAfterTime time. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00037">Event.h:37</a></div></div>
<div class="ttc" id="class_entity_html"><div class="ttname"><a href="class_entity.html">Entity</a></div><div class="ttdoc">Entity class. </div><div class="ttdef"><b>Definition:</b> <a href="_entity_8h_source.html#l00029">Entity.h:29</a></div></div>
<div class="ttc" id="class_event_html_a491887ba31c3f39b85930214133236fd"><div class="ttname"><a href="class_event.html#a491887ba31c3f39b85930214133236fd">Event::eventType</a></div><div class="ttdeci">EventType eventType</div><div class="ttdoc">Type of the event. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00038">Event.h:38</a></div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a></div><div class="ttdoc">This node is the final destination. Stats updated, nothing else to do in node. </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a></div><div class="ttdoc">Propagates a PDU through a link (typically a fixed-time delay). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a></div><div class="ttdoc">End of simulation event. Should be the last event to occur in the simulation, and the Event Chain sho...</div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a></div><div class="ttdoc">PDU is in transit within link medium (and within inTransitQueue). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a></div><div class="ttdoc">Request that a link transmits a PDU. </div></div>
<div class="ttc" id="class_link_html"><div class="ttname"><a href="class_link.html">Link</a></div><div class="ttdoc">Link class. </div><div class="ttdef"><b>Definition:</b> <a href="_link_8h_source.html#l00069">Link.h:69</a></div></div>
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          <td class="memname">TEST_F </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_link_test.html">LinkTest</a>&#160;</td>
          <td class="paramname">, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">MultiplePdusSimpleTopology&#160;</td>
          <td class="paramname">&#160;</td>
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<p>Transmit/Propagate several PDUs, test large BDP link, and queues. </p>
<p><a class="el" href="class_topology.html" title="Topology class. ">Topology</a>:</p>
<p>Node0 ------&mdash; Node1 -------&mdash; Node2 </p>

<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00397">397</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;                                             {</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;    <span class="comment">// Some variables.</span></div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;    <a class="code" href="class_event.html">Event</a> event;</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    std::shared_ptr&lt;Entity&gt; eventEntityNonConst; <span class="comment">// To temporarily use for removal of constness of Entity within event.</span></div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;    std::shared_ptr&lt;ProtocolDataUnit&gt; pduFromEventEntityNonConst;</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;    <span class="keywordtype">bool</span> simulationEnded = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pduSize = 1000; <span class="comment">// PDU will be 1000 bytes.</span></div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;    <span class="comment">// Build 3 nodes.</span></div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;    std::vector&lt;std::shared_ptr&lt;Node&gt;&gt; nodeVector;</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;    std::vector&lt;std::shared_ptr&lt;Entity&gt;&gt; routeToNode2;</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 3; ++i) {</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;        nodeVector.push_back(std::shared_ptr&lt;Node&gt;(<span class="keyword">new</span> <a class="code" href="class_node.html">Node</a>(simulatorGlobals)));</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;    }</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;    <span class="comment">// Create route from node0 to node2.</span></div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;    routeToNode2.push_back(nodeVector.at(0));</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;    routeToNode2.push_back(nodeVector.at(1));</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;    routeToNode2.push_back(nodeVector.at(2));</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;    <span class="comment">// Create simplex links between nodes.</span></div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;    <a class="code" href="class_link.html">Link</a> link01(nodeVector.at(0), nodeVector.at(1), 100000000, 0.0001, simulatorGlobals, scheduler); <span class="comment">// 100 Mbps, 0.1ms. Very fast.</span></div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="comment">//link01.setTransmissionQueueSizeLimit(9); // PDUs above 10 will be discarded.</span></div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;    <a class="code" href="class_link.html">Link</a> link12(nodeVector.at(1), nodeVector.at(2), 10000, 1.0, simulatorGlobals, scheduler); <span class="comment">// 10 Kibps, 1s, 3 PDU queue limit. Very slow.</span></div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;    link12.<a class="code" href="class_link.html#af64db4e49ef26c305b301db2ae318244">setTransmissionQueueSizeLimit</a>(2); <span class="comment">// Hold only two PDUs in queue.</span></div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;    <span class="comment">// Generate 6 PDUs to be sent them to node2 with corresponding events.</span></div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 6; ++i) {</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;            nodeVector.at(0), nodeVector.at(2), nodeVector.at(0), nodeVector.at(0), pduSize, routeToNode2))));</div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;    }</div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;    EXPECT_EQ(6, scheduler.getChainSize());</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;    <span class="comment">// Schedule one END_SIMULATION event.</span></div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(1000, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>, <span class="keyword">nullptr</span>));</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;    <span class="comment">// Main switch-case.</span></div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;    <span class="keywordflow">while</span> (!simulationEnded) {</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;        <span class="keyword">event</span> = scheduler.cause(); <span class="comment">// Fetch next event from scheduler.</span></div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;        eventEntityNonConst = std::const_pointer_cast&lt;<a class="code" href="class_entity.html">Entity</a>&gt;(<span class="keyword">event</span>.entity);</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;        pduFromEventEntityNonConst = std::dynamic_pointer_cast&lt;<a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>&gt;(eventEntityNonConst);</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;        <span class="comment">// Now decide what to do.</span></div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;        <span class="keywordflow">switch</span> (event.<a class="code" href="class_event.html#a491887ba31c3f39b85930214133236fd">eventType</a>) {</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>:</div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;                <span class="comment">// Decide which link to use based on next field of PDU.</span></div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;                <span class="comment">// Return type of Link depends on whether the link is busy or whether queue has reached maximum.</span></div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;                <span class="comment">// Node 1, link 01.</span></div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) { <span class="comment">// All PDUs.</span></div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;                    <span class="comment">// PDUs will request this event either by first arriving at node1, or when being dequeued.</span></div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;                    link01.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) {</div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;                    <span class="comment">// Node 1, link 12.</span></div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;                    <span class="comment">// PDUs 1 to 3 should be fine (one in transmission, two in queue). Other whould be discarded.</span></div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 3) {</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;                        <span class="comment">// PDUs 1 to 3 should request this event both by arriving at the link, or by being dequeued from transmission server.</span></div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;                        link12.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;                        EXPECT_EQ(link12.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1">LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED</a>);</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;                    }</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;                }</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>:</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;                <span class="comment">// Test for arrival at each node and perform tests.</span></div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(0)) { <span class="comment">// Node 0.</span></div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;                    <span class="comment">// All PDUs should arrive at 0.0.</span></div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;                    EXPECT_DOUBLE_EQ(simulatorGlobals.getCurrentAbsoluteTime(), 0.0);</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;                    EXPECT_DOUBLE_EQ(0.0, event.<a class="code" href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">occurAfterTime</a>);</div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;                    EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;                    EXPECT_EQ(nodeVector.at(2), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) { <span class="comment">// Node 1.</span></div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;                    <span class="comment">// End propagation.</span></div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;                    link01.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;                    <span class="comment">// All PDUs should arrive at pduSize * 8 / bandwidthlink01 + propagationDelayLink01 + queue wait time previous PDUs.</span></div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;                    <span class="comment">// Each subsequent PDU adds 0.08 of delay, since a PDU has to wait in the queue while to previous PDUs are being transmitted.</span></div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;                    EXPECT_DOUBLE_EQ((pduSize * 8 / link01.getBandwidth()) * (pduFromEventEntityNonConst-&gt;id) + link01.getPropagationDelay(), simulatorGlobals.getCurrentAbsoluteTime());</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;                    EXPECT_DOUBLE_EQ(event.<a class="code" href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">occurAfterTime</a>, link01.getPropagationDelay());</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;                    EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;                    EXPECT_EQ(nodeVector.at(2), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) { <span class="comment">// Node 2.</span></div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;                    <span class="comment">// End propagation.</span></div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;                    link12.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;                    <span class="comment">// PDUs from 1 to 3 should arrive at pduSize / bandwidthlink12 + propagationDelayLink12 + previous link latency + queue wait time previous PDUs at link01.</span></div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;                    <span class="comment">// PDUs from 4 to 6 should be discarded when they requested transmission at link12.</span></div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;                    <span class="comment">// Check file SimplexLinkTextMultiplePdusSimpleTopology.xlsx for these calculations.</span></div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;                    <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 3) {</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;                        <span class="keywordflow">switch</span> (pduFromEventEntityNonConst-&gt;id) {</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;                            <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;                                EXPECT_DOUBLE_EQ(1.80018, simulatorGlobals.getCurrentAbsoluteTime());</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;                                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;                            <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;                                EXPECT_DOUBLE_EQ(2.60018, simulatorGlobals.getCurrentAbsoluteTime()); </div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;                                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;                            <span class="keywordflow">case</span> 3:</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;                                EXPECT_DOUBLE_EQ(3.40018, simulatorGlobals.getCurrentAbsoluteTime()); </div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;                                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;                            <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;                                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;                        }</div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;                        </div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;                        EXPECT_DOUBLE_EQ(link12.getPropagationDelay(), <span class="keyword">event</span>.occurAfterTime);</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;                        EXPECT_EQ(nodeVector.at(0), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;source));</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;                        EXPECT_EQ(nodeVector.at(2), std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;destination));</div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;                        <span class="comment">// No other PDUs should be here.</span></div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;                        EXPECT_TRUE(pduFromEventEntityNonConst-&gt;id &gt;= 4 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 6);</div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;                    }</div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;                }</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;                <span class="comment">// This should be the same for either route. The &quot;next&quot; node should to the processing; it is actually the &quot;current&quot; node at this stage/event.</span></div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next != nodeVector.at(2)) {</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;                    <span class="comment">// Not Final destination; forward it.</span></div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;                    EXPECT_EQ(<a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a>, std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst)));</div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;                    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;                    <span class="comment">// Final destination. Do not schedule anything else.</span></div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;                    EXPECT_EQ(<a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a>, std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst)));</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;                }</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;</div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>:</div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;                std::cout &lt;&lt; <span class="stringliteral">&quot;Simulation ended.&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;                simulationEnded = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>:</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;                <span class="comment">// Here, end the link transmission and schedule the end of propagation.</span></div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) {</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;                    EXPECT_EQ(link01.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>);</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(2)) {</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;                    EXPECT_EQ(link12.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst), <a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>);</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;                    EXPECT_FALSE(<span class="keyword">true</span>); <span class="comment">// Should not happen. Mark as error.</span></div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;                }</div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;</div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;            <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;                EXPECT_FALSE(<span class="keyword">true</span>); <span class="comment">// This should never be reached.</span></div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;        } <span class="comment">// End switch.</span></div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;    } <span class="comment">// End while.</span></div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;</div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;    <span class="comment">// Test statistics.</span></div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;    <span class="comment">// Nodes.</span></div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(0)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(0)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(1)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(1)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;    EXPECT_EQ(0, nodeVector.at(2)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;    EXPECT_EQ(pduSize * 3, nodeVector.at(2)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;    <span class="comment">// Links.</span></div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;    <span class="comment">// Links 12 should drop 3 PDUs.</span></div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;    EXPECT_EQ(0, link01.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;    EXPECT_EQ(0, link01.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;    EXPECT_EQ(0, link01.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;    EXPECT_EQ(0, link12.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;    EXPECT_EQ(3, link12.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;    EXPECT_EQ(3, link12.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;</div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;    <span class="comment">// The tests below demonstrate how link01 had 9 PDUs in queue, and the other links never got any queue, since each PDU arrived after the previous one was already departed.</span></div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;    EXPECT_EQ(5, link01.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;    EXPECT_EQ(2, link12.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;}</div>
<div class="ttc" id="class_protocol_data_unit_html"><div class="ttname"><a href="class_protocol_data_unit.html">ProtocolDataUnit</a></div><div class="ttdoc">Protocol Data Unit class. </div><div class="ttdef"><b>Definition:</b> <a href="_protocol_data_unit_8h_source.html#l00033">ProtocolDataUnit.h:33</a></div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa9b52d9f68401bbcbaba5dc65b99898d1">LinkReturnType::LINK_BUSY_QUEUE_FULL_PDU_DROPPED</a></div><div class="ttdoc">The queue is full (has reached the imposed limit); PDU for which service was requested was dropped...</div></div>
<div class="ttc" id="class_event_html"><div class="ttname"><a href="class_event.html">Event</a></div><div class="ttdoc">Event class. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00035">Event.h:35</a></div></div>
<div class="ttc" id="class_node_html"><div class="ttname"><a href="class_node.html">Node</a></div><div class="ttdoc">Node class. </div><div class="ttdef"><b>Definition:</b> <a href="_node_8h_source.html#l00051">Node.h:51</a></div></div>
<div class="ttc" id="class_link_html_af64db4e49ef26c305b301db2ae318244"><div class="ttname"><a href="class_link.html#af64db4e49ef26c305b301db2ae318244">Link::setTransmissionQueueSizeLimit</a></div><div class="ttdeci">virtual void setTransmissionQueueSizeLimit(unsigned int limit)</div><div class="ttdoc">Set transmission (Facility) queue size limit (for both forward and reverse links in case of duplex li...</div><div class="ttdef"><b>Definition:</b> <a href="_link_8cpp_source.html#l00319">Link.cpp:319</a></div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a></div><div class="ttdoc">A token or PDU arrives at a node. </div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a></div><div class="ttdoc">Node is not final destination; route information was updated within PDU/token, to be forwarded...</div></div>
<div class="ttc" id="class_event_html_a0c757aa51de4c298990f70962cfa3fd2"><div class="ttname"><a href="class_event.html#a0c757aa51de4c298990f70962cfa3fd2">Event::occurAfterTime</a></div><div class="ttdeci">double occurAfterTime</div><div class="ttdoc">Occurrence latency, i.e., event occurs after occurAfterTime time. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00037">Event.h:37</a></div></div>
<div class="ttc" id="class_entity_html"><div class="ttname"><a href="class_entity.html">Entity</a></div><div class="ttdoc">Entity class. </div><div class="ttdef"><b>Definition:</b> <a href="_entity_8h_source.html#l00029">Entity.h:29</a></div></div>
<div class="ttc" id="class_event_html_a491887ba31c3f39b85930214133236fd"><div class="ttname"><a href="class_event.html#a491887ba31c3f39b85930214133236fd">Event::eventType</a></div><div class="ttdeci">EventType eventType</div><div class="ttdoc">Type of the event. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00038">Event.h:38</a></div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a></div><div class="ttdoc">This node is the final destination. Stats updated, nothing else to do in node. </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a></div><div class="ttdoc">Propagates a PDU through a link (typically a fixed-time delay). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a></div><div class="ttdoc">End of simulation event. Should be the last event to occur in the simulation, and the Event Chain sho...</div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a></div><div class="ttdoc">PDU is in transit within link medium (and within inTransitQueue). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a></div><div class="ttdoc">Request that a link transmits a PDU. </div></div>
<div class="ttc" id="class_link_html"><div class="ttname"><a href="class_link.html">Link</a></div><div class="ttdoc">Link class. </div><div class="ttdef"><b>Definition:</b> <a href="_link_8h_source.html#l00069">Link.h:69</a></div></div>
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          <td class="memname">TEST_F </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_link_test.html">LinkTest</a>&#160;</td>
          <td class="paramname">, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">MultiplePdusMediumDrop&#160;</td>
          <td class="paramname">&#160;</td>
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        <tr>
          <td></td>
          <td>)</td>
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<p>Transmit/Propagate several PDUs, set link down, test dropped PDUs. </p>
<p><a class="el" href="class_topology.html" title="Topology class. ">Topology</a>:</p>
<p>Node0 ------&mdash; Node1 </p>

<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00570">570</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;                                         {</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;    <span class="comment">// Some variables.</span></div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;    <a class="code" href="class_event.html">Event</a> event;</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;    std::shared_ptr&lt;Entity&gt; eventEntityNonConst; <span class="comment">// To temporarily use for removal of constness of Entity within event.</span></div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;    std::shared_ptr&lt;ProtocolDataUnit&gt; pduFromEventEntityNonConst;</div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;    <span class="keywordtype">bool</span> simulationEnded = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pduSize = 1000; <span class="comment">// PDU will be 1000 bytes.</span></div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;</div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;    <span class="comment">// Build 2 nodes.</span></div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;    std::vector&lt;std::shared_ptr&lt;Node&gt;&gt; nodeVector;</div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;    std::vector&lt;std::shared_ptr&lt;Entity&gt;&gt; routeToNode1;</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 2; ++i) {</div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;        nodeVector.push_back(std::shared_ptr&lt;Node&gt;(<span class="keyword">new</span> <a class="code" href="class_node.html">Node</a>(simulatorGlobals)));</div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;    }</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;    <span class="comment">// Create route from node0 to node1.</span></div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;    routeToNode1.push_back(nodeVector.at(0));</div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;    routeToNode1.push_back(nodeVector.at(1));</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;    </div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;    <span class="comment">// Create simplex links between nodes.</span></div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;    <a class="code" href="class_link.html">Link</a> link01(nodeVector.at(0), nodeVector.at(1), 8000, 2, simulatorGlobals, scheduler); <span class="comment">// 8 Kbps, 2s. Transmission takes 1s per PDU, very slow propagation, to force dropping these PDUs in transit.</span></div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;    </div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;    <span class="comment">// Generate 6 PDUs to be sent them to node1 with corresponding events.</span></div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 6; ++i) {</div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;            nodeVector.at(0), nodeVector.at(1), nodeVector.at(0), nodeVector.at(0), pduSize, routeToNode1))));</div>
<div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;    }</div>
<div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;        </div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;    <span class="comment">// Schedule one END_SIMULATION event.</span></div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(1000, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>, <span class="keyword">nullptr</span>));</div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;    <span class="comment">// Schedule one LINK DOWN event.</span></div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(3.5, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420">EventType::SET_LINK_DOWN</a>, <span class="keyword">nullptr</span>));</div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;    EXPECT_EQ(8, scheduler.getChainSize());</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;    <span class="comment">// Main switch-case.</span></div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;    <span class="keywordflow">while</span> (!simulationEnded) {</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;        <span class="keyword">event</span> = scheduler.cause(); <span class="comment">// Fetch next event from scheduler.</span></div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;        eventEntityNonConst = std::const_pointer_cast&lt;<a class="code" href="class_entity.html">Entity</a>&gt;(<span class="keyword">event</span>.entity);</div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;        pduFromEventEntityNonConst = std::dynamic_pointer_cast&lt;<a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>&gt;(eventEntityNonConst);</div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;        <span class="comment">// Now decide what to do.</span></div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;        <span class="keywordflow">switch</span> (event.<a class="code" href="class_event.html#a491887ba31c3f39b85930214133236fd">eventType</a>) {</div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>:</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;                <span class="comment">// Node 1, link 01.</span></div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;                link01.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>:</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;                <span class="comment">// Test for arrival. All PDUs arrive at node 0.</span></div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(0)) { <span class="comment">// Node 0.</span></div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;                    EXPECT_TRUE(pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 6);</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next == nodeVector.at(1)) { <span class="comment">// Node 1.</span></div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;                    <span class="comment">// Only PDU 1 should arrive at node 1; others will be dropped in transit and in link transmission.</span></div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;                    EXPECT_TRUE(pduFromEventEntityNonConst-&gt;id == 1);</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;                }</div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;                <span class="comment">// Perform forwarding.</span></div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;next != nodeVector.at(1)) {</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;                    <span class="comment">// Not Final destination; forward it.</span></div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;                    EXPECT_EQ(<a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a>, std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst)));</div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;                    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;                    <span class="comment">// Final destination. Do not schedule anything else.</span></div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;                    <span class="comment">// End propagation.</span></div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;                    link01.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;                    EXPECT_EQ(<a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a>, std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst)));</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;                }</div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;</div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>:</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;                std::cout &lt;&lt; <span class="stringliteral">&quot;Simulation ended.&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;                simulationEnded = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>:</div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;                <span class="comment">// Here, end the link transmission and schedule the end of propagation.</span></div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;id &gt;= 1 &amp;&amp; pduFromEventEntityNonConst-&gt;id &lt;= 4) {</div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;                    EXPECT_EQ(<a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a>, link01.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;                    EXPECT_EQ(<a class="code" href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa0bec40bfb1c3fa48c0a7b3b5817508f4">LinkReturnType::LINK_DOWN_PDU_DROPPED</a>, link01.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;                }</div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;</div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420">EventType::SET_LINK_DOWN</a>:</div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;                link01.setDown();</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;                EXPECT_FALSE(link01.isUp());</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;</div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;            <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;                EXPECT_FALSE(<span class="keyword">true</span>); <span class="comment">// This should never be reached.</span></div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;        } <span class="comment">// End switch.</span></div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;    } <span class="comment">// End while.</span></div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;</div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;    <span class="comment">// Test statistics.</span></div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;    <span class="comment">// Nodes.</span></div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(0)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(0)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;    EXPECT_EQ(0, nodeVector.at(1)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;    EXPECT_EQ(pduSize * 1, nodeVector.at(1)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;    </div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;    <span class="comment">// Links.</span></div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;    <span class="comment">// Links 01 should drop 3 PDUs.</span></div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;    EXPECT_EQ(2, link01.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;    EXPECT_EQ(3, link01.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;    EXPECT_EQ(5, link01.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;    </div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;    <span class="comment">// The tests below demonstrate how link01 had 5 PDUs in queue.</span></div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;    EXPECT_EQ(5, link01.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;}</div>
<div class="ttc" id="class_protocol_data_unit_html"><div class="ttname"><a href="class_protocol_data_unit.html">ProtocolDataUnit</a></div><div class="ttdoc">Protocol Data Unit class. </div><div class="ttdef"><b>Definition:</b> <a href="_protocol_data_unit_8h_source.html#l00033">ProtocolDataUnit.h:33</a></div></div>
<div class="ttc" id="class_event_html"><div class="ttname"><a href="class_event.html">Event</a></div><div class="ttdoc">Event class. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00035">Event.h:35</a></div></div>
<div class="ttc" id="class_node_html"><div class="ttname"><a href="class_node.html">Node</a></div><div class="ttdoc">Node class. </div><div class="ttdef"><b>Definition:</b> <a href="_node_8h_source.html#l00051">Node.h:51</a></div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a></div><div class="ttdoc">A token or PDU arrives at a node. </div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a></div><div class="ttdoc">Node is not final destination; route information was updated within PDU/token, to be forwarded...</div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420">EventType::SET_LINK_DOWN</a></div><div class="ttdoc">Sets link down. </div></div>
<div class="ttc" id="class_entity_html"><div class="ttname"><a href="class_entity.html">Entity</a></div><div class="ttdoc">Entity class. </div><div class="ttdef"><b>Definition:</b> <a href="_entity_8h_source.html#l00029">Entity.h:29</a></div></div>
<div class="ttc" id="class_event_html_a491887ba31c3f39b85930214133236fd"><div class="ttname"><a href="class_event.html#a491887ba31c3f39b85930214133236fd">Event::eventType</a></div><div class="ttdeci">EventType eventType</div><div class="ttdoc">Type of the event. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00038">Event.h:38</a></div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a></div><div class="ttdoc">This node is the final destination. Stats updated, nothing else to do in node. </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a></div><div class="ttdoc">Propagates a PDU through a link (typically a fixed-time delay). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a></div><div class="ttdoc">End of simulation event. Should be the last event to occur in the simulation, and the Event Chain sho...</div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa546235efbb1655a5182b7eaf007ac0cc">LinkReturnType::PDU_IN_TRANSIT_NEXT_EVENT_SCHEDULED</a></div><div class="ttdoc">PDU is in transit within link medium (and within inTransitQueue). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a></div><div class="ttdoc">Request that a link transmits a PDU. </div></div>
<div class="ttc" id="class_link_html"><div class="ttname"><a href="class_link.html">Link</a></div><div class="ttdoc">Link class. </div><div class="ttdef"><b>Definition:</b> <a href="_link_8h_source.html#l00069">Link.h:69</a></div></div>
<div class="ttc" id="_link_return_type_8h_html_a554ed4dd9752dfafac386b42493b83afa0bec40bfb1c3fa48c0a7b3b5817508f4"><div class="ttname"><a href="_link_return_type_8h.html#a554ed4dd9752dfafac386b42493b83afa0bec40bfb1c3fa48c0a7b3b5817508f4">LinkReturnType::LINK_DOWN_PDU_DROPPED</a></div><div class="ttdoc">Link is down. PDU was dropped (or enqueued, depending on the implementation of function Facility::req...</div></div>
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          <td class="memname">TEST_F </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_link_test.html">LinkTest</a>&#160;</td>
          <td class="paramname">, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">DuplexLinkAndDrop&#160;</td>
          <td class="paramname">&#160;</td>
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          <td></td>
          <td>)</td>
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<p>Transmit/Propagate several PDUs back and forth in a duplex link. <a class="el" href="class_link.html" title="Link class. ">Link</a> fault. </p>
<p><a class="el" href="class_topology.html" title="Topology class. ">Topology</a>:</p>
<p>Node0 ------&mdash; Node1 </p>

<p>Definition at line <a class="el" href="_link_test_8cpp_source.html#l00687">687</a> of file <a class="el" href="_link_test_8cpp_source.html">LinkTest.cpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;                                    {</div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;    <span class="comment">// Some variables.</span></div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;    <a class="code" href="class_event.html">Event</a> event;</div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;    std::shared_ptr&lt;Entity&gt; eventEntityNonConst(<span class="keyword">nullptr</span>); <span class="comment">// To temporarily use for removal of constness of Entity within event.</span></div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;    std::shared_ptr&lt;ProtocolDataUnit&gt; pduFromEventEntityNonConst(<span class="keyword">nullptr</span>);</div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;    <span class="keywordtype">bool</span> simulationEnded = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pduSize = 1000; <span class="comment">// PDU will be 1000 bytes.</span></div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ackPduSize = 1; <span class="comment">// Ack PDU will be 1 byte.</span></div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;    <a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1">NodeReturnType</a> nodeReturnType;</div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;    </div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;    <span class="comment">// Build 2 nodes.</span></div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;    std::vector&lt;std::shared_ptr&lt;Node&gt;&gt; nodeVector;</div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;    std::vector&lt;std::shared_ptr&lt;Entity&gt;&gt; route01;</div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;    std::vector&lt;std::shared_ptr&lt;Entity&gt;&gt; route10;</div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 2; ++i) {</div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;        nodeVector.push_back(std::shared_ptr&lt;Node&gt;(<span class="keyword">new</span> <a class="code" href="class_node.html">Node</a>(simulatorGlobals)));</div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;    }</div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;    <span class="comment">// Create route from node0 to node1.</span></div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;    route01.push_back(nodeVector.at(0));</div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;    route01.push_back(nodeVector.at(1));</div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;    <span class="comment">// Create route from node1 to node0.</span></div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;    route10.push_back(nodeVector.at(1));</div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;    route10.push_back(nodeVector.at(0));</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;</div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;    <span class="comment">// Create duplex link between nodes.</span></div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;    <a class="code" href="class_link.html">Link</a> link(nodeVector.at(0), nodeVector.at(1), 8000, 2, simulatorGlobals, scheduler, <span class="stringliteral">&quot;&quot;</span>, <a class="code" href="_link_type_8h.html#a1e09bc05c5df6349a74bd3b9db638a96a1077fecfb51c2f9fb873a911849f9975">LinkType::DUPLEX_LINK</a>); <span class="comment">// 8 Kbps, 2s. Transmission takes 1s per PDU, very slow propagation.</span></div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;    </div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;    <span class="comment">// Generate 6 PDUs to be sent them to node1 with corresponding events.</span></div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 6; ++i) {</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;            nodeVector.at(0), nodeVector.at(1), nodeVector.at(0), nodeVector.at(0), pduSize, route01))));</div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;    }</div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;        </div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;    <span class="comment">// Schedule one END_SIMULATION event.</span></div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(1000, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>, <span class="keyword">nullptr</span>));</div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;    <span class="comment">// Schedule one LINK DOWN event.</span></div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(3.5, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420">EventType::SET_LINK_DOWN</a>, <span class="keyword">nullptr</span>));</div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;    EXPECT_EQ(8, scheduler.getChainSize());</div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;    <span class="comment">// Main switch-case.</span></div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;    <span class="keywordflow">while</span> (!simulationEnded) {</div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;        <span class="keyword">event</span> = scheduler.cause(); <span class="comment">// Fetch next event from scheduler.</span></div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;        eventEntityNonConst = std::const_pointer_cast&lt;<a class="code" href="class_entity.html">Entity</a>&gt;(<span class="keyword">event</span>.entity);</div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;        pduFromEventEntityNonConst = std::dynamic_pointer_cast&lt;<a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>&gt;(eventEntityNonConst);</div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;        <span class="comment">// Now decide what to do.</span></div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;        <span class="keywordflow">switch</span> (event.<a class="code" href="class_event.html#a491887ba31c3f39b85930214133236fd">eventType</a>) {</div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>:</div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;                <span class="comment">// Transmit PDU; direction depends on PDU.</span></div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;                link.transmitPdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;</div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>:</div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;                <span class="comment">// Test link direction and behavior of functions that determine link direction.</span></div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;                <span class="comment">// Also verify whether the PDU has just being created; in that case, this is the source node, and &quot;previous&quot; and &quot;next&quot; will be equal to the source node until the PDU is processed/forwarded.</span></div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;                <span class="keywordflow">if</span> (pduFromEventEntityNonConst-&gt;previous != pduFromEventEntityNonConst-&gt;next) { <span class="comment">// Not source node. </span></div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160;                    <span class="keywordflow">if</span> (std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;previous) == nodeVector.at(0)) {</div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;                        <span class="comment">// Direction node0 to node1. Test.</span></div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;                        EXPECT_TRUE((link.isNodeAlinkedToNodeB(std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;previous), std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next))));</div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;                    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;previous) == nodeVector.at(1)) {</div>
<div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;                        EXPECT_TRUE((link.getReverseLink()-&gt;isNodeAlinkedToNodeB(std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;previous), std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next))));</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;                    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160;                        EXPECT_FALSE(<span class="keyword">true</span>); <span class="comment">// Fail here.</span></div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;                    }</div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;                    <span class="comment">// This is the source node. Do nothing.</span></div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;                    EXPECT_TRUE(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;                }</div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;                <span class="comment">// End propagation at proper link. Note that if this is the source node, endPropagation will do nothing, since the PDU is not yet at the link.</span></div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;                <span class="comment">// Note, additionally, that endPropagation has intelligence to determine the proper link direction given the PDU.</span></div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;                link.endPropagation(pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;                </div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;                <span class="comment">// Perform forwarding. This should be done &quot;after&quot; ending propagation at current link, thus meaning the PDU has &quot;left&quot; the link.</span></div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;                nodeReturnType = std::dynamic_pointer_cast&lt;<a class="code" href="class_node.html">Node</a>&gt;(pduFromEventEntityNonConst-&gt;next)-&gt;processAndForward(std::dynamic_pointer_cast&lt;ProtocolDataUnit&gt;(eventEntityNonConst));</div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;                <span class="keywordflow">if</span> (nodeReturnType == <a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a>) {</div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;                    <span class="comment">// Not final destination; schedule transmission.</span></div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;                    <span class="comment">//link.endPropagation(pduFromEventEntityNonConst);</span></div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;                    scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a>, pduFromEventEntityNonConst));</div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (nodeReturnType == <a class="code" href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a>) {</div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;                    <span class="comment">// Final destination. Now check whether we must generate an ACK PDU.</span></div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;                    <span class="keywordflow">if</span> (std::dynamic_pointer_cast&lt;Node&gt;(pduFromEventEntityNonConst-&gt;next) == nodeVector.at(1)) {</div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;                        <span class="comment">// Arrived at node1; generate an ACK towards node0.</span></div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;                        scheduler.schedule(<a class="code" href="class_event.html">Event</a>(0.0, <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, std::shared_ptr&lt;ProtocolDataUnit&gt;(<span class="keyword">new</span> <a class="code" href="class_protocol_data_unit.html">ProtocolDataUnit</a>(simulatorGlobals, 1, <span class="keyword">nullptr</span>,</div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;                            nodeVector.at(1), nodeVector.at(0), nodeVector.at(1), nodeVector.at(1), ackPduSize, route10))));</div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;                    }</div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;                }</div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;</div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a>:</div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;                std::cout &lt;&lt; <span class="stringliteral">&quot;Simulation ended.&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;                simulationEnded = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;</div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a>:</div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;                <span class="comment">// Here, end the link transmission and schedule the end of propagation.</span></div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;                link.propagatePdu(<a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a>, pduFromEventEntityNonConst);</div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;</div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;            <span class="keywordflow">case</span> <a class="code" href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420">EventType::SET_LINK_DOWN</a>:</div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;                EXPECT_EQ(6, link.setDown()); <span class="comment">// 5 PDUs in node0 queue, + 1 ACK in transmission at node1.</span></div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;                EXPECT_FALSE(link.isUp());</div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;            <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;                EXPECT_FALSE(<span class="keyword">true</span>); <span class="comment">// This should never be reached.</span></div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;        } <span class="comment">// End switch.</span></div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;    } <span class="comment">// End while.</span></div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;</div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;    <span class="comment">// Test statistics.</span></div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;    <span class="comment">// Nodes.</span></div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(0)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;    EXPECT_EQ(pduSize * 6, nodeVector.at(0)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;    EXPECT_EQ(ackPduSize * 1, nodeVector.at(1)-&gt;getForwardedBytesCount());</div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;    EXPECT_EQ(pduSize * 1 + ackPduSize * 1, nodeVector.at(1)-&gt;getReceivedBytesCount());</div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;    </div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;    <span class="comment">// Links.</span></div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;    <span class="comment">// Links 01 should drop 3 PDUs.</span></div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;    EXPECT_EQ(2, link.getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;    EXPECT_EQ(3, link.getDroppedPdusCountTransmissionServer());</div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;    EXPECT_EQ(5, link.getDroppedPdusCountWholeLink());</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;    EXPECT_EQ(1, link.getReverseLink()-&gt;getDroppedPdusCountMedium());</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;    EXPECT_EQ(0, link.getReverseLink()-&gt;getDroppedPdusCountTransmissionServer()); <span class="comment">// Transmission of ACK1 takes 0.001s, finishes at 3.001s. Propagation would end at 5.001s.</span></div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;    EXPECT_EQ(1, link.getReverseLink()-&gt;getDroppedPdusCountWholeLink()); <span class="comment">// Node1 only receives one PDU, PDU1. PDU2 would reach node1 at 4s.</span></div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;    </div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;    <span class="comment">// The tests below demonstrate how link01 had 5 PDUs in queue.</span></div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;    EXPECT_EQ(5, link.getMaxRecordedTransmissionQueueSize());</div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;}</div>
<div class="ttc" id="class_protocol_data_unit_html"><div class="ttname"><a href="class_protocol_data_unit.html">ProtocolDataUnit</a></div><div class="ttdoc">Protocol Data Unit class. </div><div class="ttdef"><b>Definition:</b> <a href="_protocol_data_unit_8h_source.html#l00033">ProtocolDataUnit.h:33</a></div></div>
<div class="ttc" id="class_event_html"><div class="ttname"><a href="class_event.html">Event</a></div><div class="ttdoc">Event class. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00035">Event.h:35</a></div></div>
<div class="ttc" id="class_node_html"><div class="ttname"><a href="class_node.html">Node</a></div><div class="ttdoc">Node class. </div><div class="ttdef"><b>Definition:</b> <a href="_node_8h_source.html#l00051">Node.h:51</a></div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1">NodeReturnType</a></div><div class="ttdeci">NodeReturnType</div><div class="ttdoc">Node Return Type enum class. </div><div class="ttdef"><b>Definition:</b> <a href="_node_return_type_8h_source.html#l00028">NodeReturnType.h:28</a></div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9b31ea954f59af0f85d1ac9b65607772">EventType::PDUTOKEN_ARRIVAL_AT_NODE</a></div><div class="ttdoc">A token or PDU arrives at a node. </div></div>
<div class="ttc" id="_link_type_8h_html_a1e09bc05c5df6349a74bd3b9db638a96a1077fecfb51c2f9fb873a911849f9975"><div class="ttname"><a href="_link_type_8h.html#a1e09bc05c5df6349a74bd3b9db638a96a1077fecfb51c2f9fb873a911849f9975">LinkType::DUPLEX_LINK</a></div><div class="ttdoc">Two-way, bidirectional link betwen to nodes. </div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1a6491ac1bf9f296c0bd614d1b182f8932">NodeReturnType::PDU_ROUTE_UPDATED</a></div><div class="ttdoc">Node is not final destination; route information was updated within PDU/token, to be forwarded...</div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa9bc56863b9fa691d4c06f5ff30f02420">EventType::SET_LINK_DOWN</a></div><div class="ttdoc">Sets link down. </div></div>
<div class="ttc" id="class_entity_html"><div class="ttname"><a href="class_entity.html">Entity</a></div><div class="ttdoc">Entity class. </div><div class="ttdef"><b>Definition:</b> <a href="_entity_8h_source.html#l00029">Entity.h:29</a></div></div>
<div class="ttc" id="class_event_html_a491887ba31c3f39b85930214133236fd"><div class="ttname"><a href="class_event.html#a491887ba31c3f39b85930214133236fd">Event::eventType</a></div><div class="ttdeci">EventType eventType</div><div class="ttdoc">Type of the event. </div><div class="ttdef"><b>Definition:</b> <a href="_event_8h_source.html#l00038">Event.h:38</a></div></div>
<div class="ttc" id="_node_return_type_8h_html_a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec"><div class="ttname"><a href="_node_return_type_8h.html#a653f4b3757de7a3613c60211493c60c1ab9804cb278b1f322f56a216720a67eec">NodeReturnType::FINAL_DESTINATION</a></div><div class="ttdoc">This node is the final destination. Stats updated, nothing else to do in node. </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa7b83d89c39b12ab66465087a3118a3ac">EventType::END_TRANSMISSION_PROPAGATE_PDU_AT_LINK</a></div><div class="ttdoc">Propagates a PDU through a link (typically a fixed-time delay). </div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa96955421ee351c21ef8b232bc9d8998d">EventType::END_SIMULATION</a></div><div class="ttdoc">End of simulation event. Should be the last event to occur in the simulation, and the Event Chain sho...</div></div>
<div class="ttc" id="_event_type_8h_html_a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b"><div class="ttname"><a href="_event_type_8h.html#a2628ea8d12e8b2563c32f05dc7fff6faa2f5f57b148fe966a93f58ed00865a12b">EventType::REQUEST_PDU_TRANSMISSION_AT_LINK</a></div><div class="ttdoc">Request that a link transmits a PDU. </div></div>
<div class="ttc" id="class_link_html"><div class="ttname"><a href="class_link.html">Link</a></div><div class="ttdoc">Link class. </div><div class="ttdef"><b>Definition:</b> <a href="_link_8h_source.html#l00069">Link.h:69</a></div></div>
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